What did you buy that made you unhappy?
I think folks look for different sounds.
It's important that the reviewer has same "ears" as you. If the first earphone doesn't match - it means you need to look for your ideal reviewer.
From their descriptions I can identify right away that scarbir.com and d3myz probably has same ears as myself.
In my opinion - there are I think a few types of "ears":
1) The majority group (including many audiophiles) prefers sensitivity - they want to hear pin drop, hear sounds they never noticed before.
2) Some want sub sonic bass. The Monsters and Beats went that route.
To satisfy the market - V shaped sound frequencies are applied as: "Humans are intrinsically attracted to sound that are more colored than those with a flat profile. Headphones with V-shaped sound signature tend to have booming bass and sparkling treble, which makes for a more exciting listening experience." Include Bose, Sennheisers.
https://www.headphonesty.com/2017/01/v-shaped-sound-signature-mean/
3) Remaining folks and some audiophiles want thick sounding buds - tonal accuracy. For me, I want Snare drum to sound like real snares and rim shots to be full bodied. Metal string guitars should not pierce. These kinds of sound signature tend to be less exciting. It sounds even more dull when you add bass to thick sounding buds. Personally I do not judge by "how clear, cymbals, treble / bass extension",.. I look for tone, texture, feel. In other words "timbre".
https://en.wikipedia.org/wiki/Timbre
So reviewers also tend to fall into the above categories.
You need to know which sound appeals to you.
I'm not an audiophile... only a very average non pro musician.
I always try to identify type #3 and follow them....